Creasing mechanism



Aug. 25, 1931. J.T. ROBINSON CREASING MECHANISM Filed March 22, 1929 ai/ v J9 Jnvenzox I r I 9. (2,301. m vw M 1722 Patented Aug. 25, 1931 oann. 'itoBINsONfoE BOSTONQ,MAsSAoHUsE'rTs; ASSIGN'QR TO JoH'NE'r. 'ROBINSON J ,co vrrlrNY;o 'BosmoN,M ssAcnUsET'rs, A CQREORATION vor ivrnssnjcnusm'rs CliEASIijGyMEOHANISM .This invention relatesnto,.1nachines for creasmgor scor ng cardboard. and fslmllfllll i stock inther preparation of the blanks {which are subsequently folded to make boxes. The

invention is directed especially to devices for adjusting the relative positions of cooperating creasing elements. i

Theaessential portions of a "creasing ma-I chine comprises a plurality ,ofunits, each in-g eluding 4 a cooperating relatively adjustable creasing-Wheel and roll'between Whichthe stock to be creased is passed.v Usually,;a plurality of carriers'are mounted in a slidew'ay' in the machine, each carrier being I provided with a creasing wheel' whichis adjus'tably movable toward" j and" from 1 a cooperating creasin'gr'oll by an a'djusting screw; I The creasing rolls-of all units usually areQmoiint ed upon a common shaft and often ary con- 'siderableinidiameteri-"1 In setting-"up :the' naachine fOI": creasinga uniformly good. T lie best resultsyverefobcept by unusual care in their manufacture and r yenient'ly adjusted so that the creasing wheel a consequent prohibitive cost. 5 Thej irn'pOftance of adjusting the creasingunits so'as to P idei equal. per iv d ta e b w en o: operatingcreasing Wheels and :rolls ijs illujs med; by t e fa t, i h f iv'vhenv th d s a c a ies, more than about 01101 of anfi nchj neither uniforinflnor, good creases are'fobt e t I I ,f It an object to rc e :t e e i 11 t ee dtd Provi creasing units whichr'nay be readily and conml ro l, e eadr i ere y u itm y e sp f 'Appm iitmn filed m 22, 1529. semi no: 3 49,195r."

- rain d h rme ang te'diousseries arir elemon fi iu tnmnts f e h and. l n s-- ss iw tion has been' aggravated by the lost'f'inotion in theadj ustable parts ofthe unitsfandl'by' the variation in tliediarneter otthecr'easing rolls,

conditiorrfwhich couldnotbefreniedied exr a j: Usually-scor ng and creasing machi I a the type to; which the present} invention q relates comprise plurality fofgfsections; throughwhichthe stock:ispassedtocrease a and score the sameno gm desired parallel 1 1; 1 line :For. the nurposeuof illustra ion-9913" ,-It is a other'ob'ect of the invention to PiQ- 'ndi'actor which m y be' fit ad editoi each creasing unit and hich-assists" not only insettingup'and adjusting eacliunit butialso f 1 inakesvpossible the same accuratefor likea d justrnentof allunits I Before ex lalni'ng V I a I p ventlon, 1t is to be understood thattheln'tienparts. illustrated the accompanying drawg ings,"since,-the invention is capable of other i embodiments P and of being practiced or car;

ried out in variousQ ays; Also lt lSItO befliniv r a in present v a 5 tionis not limited inits application to the 'fd'e-j tails I of construction and {arrangement "of derstoodth'at thephraseologyor terminology j v requirements thereof. I

bq fem th if l w e le' efiptinin 9 Z junctiontvithjthe ,acfcornp anyingt drawinjgsf in .flFigvlis a-f iqnt meal 1 I 1 I Fig. 2 is 311 siinfi-lar View onian enlarg'ed an lpi r i rand, I

of the invent on: shown: in the'drawings.

;shown,the frame eniploye.d,hejrein is for the purpose" of de- 1 scription andnot of li iiiitat ionand it-Ii-Sfnot Y intended f to limit'fthefl invention beyond 1 the A e rternisi of the several fclaiins; hereto. ap,pe1 idedj' jaslconlsidered in: iiiewof thel'prior art andftlie" ybroke'n-ayvayio f thecreasingun t': H I (Fig.3.; 1s1a sectional: yieit 'talgen l ne I 1 Qneseetion is indicated inthei'ie'mbodirnent zoo s aQ if fem y incl idea r f et' wllt iifil s ,This machine comprises @bllil'QI'fliSlldfl 10;; 9

. mounted infixed, position, in the machineand I r a'shaft llwdisposed'jfparallelfandadj "eentlto 1 v t bar lfi j Conveniently; and. as he re'i n of the. creasing and" scoring} uprights 12 between which a suitable table (not shown) as well as the bar are supported, said uprights carrying suitable bearings in which the shaft 11 is mounted. The shaft 11 is rotated b gears 13 driven by power from any suitab e source not shown.

Separately, detachably' and adjustably mounted on the bar 10 are creasing devices 15 corresponding in number and arrangement to the creased lines desired on the blank. Preferably, as shown, the creasing devices 15 comprise disks or wheels rotatably mounted in carriers 16'adjustable as by adjusting screws 17 in holders 18 detachably secured as by set screws 19 to the'bar 10. It will be seen that the holders 18 with their creasing devices can be applied at will to the bar 10 or removed therefrom or adjusted therealong transversely of the machine in accordance withthe requirements of the work.

, the creasing wheels 15 and creasing rolls 23 relatively in accordance with the invention, asuitable indicator may be provided with each creasing unit. The form of indicator illustrated comprises parallel plates and 31 spaced apart as by spacers 32 and secured to the holder 18 as by screws 33. A scale 35 is secured between the plates 30 and 31 at one end thereof so as to leave a passage 36 for a pointer37 formed at the free end of one arm 38 of abell crank B pivotally mounted upon a stud 39'extending'b'etween'the plates 30 and 31. The free end of the other arm 9 of the bell crank B is provided with a laterally pro jecting pin or stud 4O adapted-to engage one end of a lever 41 pivotally mounted upon a stud 42 extending between the plates 30 and 31. The other end of the lever 11 is .positioned to engage an adjustable stop, such as an adjusting screw45 mounted in a lug 46 fixed upon the carrier 16. A spring 18 issecured at one end to astud/19 and surrounds a stud 50and at its free end engages the arm 38 of the bell crank B so as to urge the pin 40 upon said arm resiliently against one end of the lever 41 and consequently urge the other end of the lever 41 resiliently against the adjustable stop 45. g V

In setting up andadjusting the creasing units-for a given stock S, one of the creasing wheelsl5 is moved into engagement with its cooperating roll 23 by operation of the adj usting screw 17. p The adjusting screw 45 is then operated to move the pointer 37 to the zero mark on the scale 35. The creasing wheel 15 is then spaced from the roll 23 by the operation of the adjusting screw 17 and power is supplied to the machine to rotate the roll 23. btock S is then passed between the wheel 15'a-nd roll 23 and creased. If the crease thus formed is not good, the operative distance between the wheel 15 and roll 23 is adjusted until a good crease is formed. The position of the pointer 37 relative to the scale 35 is then noted and the creasing wheels 15 of the remaining creasing units are adjusted in like manner by first moving the creasing wheel into engagement with the cooperating creasing roll and setting the pointer 37 at zero upon the scale 35. The wheels 15 are then spaced from their cooperating creasing rolls 23 by'the operation of the adjusting screw 17 until the position of the pointers 37 all give similar readings upon the scales 35.

What I claimis:

1. In a creasing machine having a creasing device comprising a holder, a carrier adjustably mounted in said holder, a creasing wheel rotatablymounted in said carrier, means for adjusting said carrier, and a creasing roll mounted to cooperate with said wheel, the

combination therewith of an indicator having a'scale mounted on said holder, an indicating pointer pivotally. mounted on the holder, and means operatively connected with said wheel for adjustin the position of said pointer relative to the scale when said roll and wheel are in engagement whereby said pointer will indicate the operative distance between said wheel and roll when said carrier, is adjusted.

2. In a creasing machine having a creasing device comprising a holder, a creasing wheel adjustably mounted. in said holder,

'andmeans for adjusting the position of said scale mounted on the holder, an indicating pointer movably mounted on the holder, an adjusting screw on said carrier, and resilient connections between said screw and pointer.

1. In a creasing machine having a creasing device-comprising a holder, a carrier adjustably mounted in said holder, and a creasing wheel rotatably mounted in'said carrier, and means for adjusting said carrier, the

combination therewith of an indicator havdevice comprising a h0lder, a'carrier'adjust ably mounted in said holder, a creasing wheel rotatably mounted in said carrier, and means for adjusting said carrier, the combination therewith of an indicator Ihaving a scale mounted on the holder, an indieatingpointer pivotally mounted onthe holder, an ad- 'justable stop on said carrier, a lever pivotally ing'op'posite ends of said lever toengage resiliently said stop, and pointer; v a I '6. In a creasingmachine having a creasing devicecomprising a holder, a earrier adjust ably mounted in said holder, aereasing wheel rotatably mounted in said carrier, and means. i for adjusting said carrier to movesaid wheel m'ountedon the holder, and means for ea'us- V v in'its own plane, the combination therewith I i V of an-indicating pointer pivotally mounted on the holder to swing parallel to said plane,

a lever pivotally mounted upon said holder between said pointer and wheel and having r e a free armextending pastsaid-pointer, means engaging the other arm of said lever to cause i i it to move when said carrier is adjusted,and

an armon said pointer extending from the pivotal connection thereof awayfrom' said 1 wheel to engage saidfreearm. V

V In testimony whereof I aflix signature.

oHn'r. ROBINSON. 

